package com.ran.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.ran.reggie.common.R;
import com.ran.reggie.entity.User;
import com.ran.reggie.service.impl.UserService;
import com.ran.reggie.utils.SMSUtils;
import com.ran.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.HttpSessionRequiredException;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate<Object,Object> redisTemplate;

    /**
     * 发送手机短信验证码
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession httpSession){

        //获取手机号
        String phone = user.getPhone();
        if(StringUtils.isNotEmpty(phone)) {

            //生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code = {}",code);
            //调用阿里云提供的短信服务API完成发送短信

            //SMSUtils.sendMessage("瑞吉外卖","SMS_269065044",phone,code);
            //需要将生成的验证保存到Session
            
//            httpSession.setAttribute(phone,code);
            redisTemplate.opsForValue().set(phone,code,5,TimeUnit.MINUTES);
            return R.success("手机验证码发送成功");

        }
        return R.error("短信发送失败");
    }

    /**
     * 移动端用户登录
     * @param map
     * @param httpSession
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession httpSession){

        log.info(map.toString());
        
        //获取手机号
        String phone = map.get("phone").toString(); 
        //获取验证码
        String code = map.get("code").toString();   
        //从Session中获取保存的验证码
//        Object codeInSession = httpSession.getAttribute(phone);
        //进行验证码的比对（页面提交的验证码和Session中保存的验证码比对）
        
        Object codeInRedis = redisTemplate.opsForValue().get(phone);
        
        if (codeInRedis!=null&&codeInRedis.equals(code)){

            //如果能够比对成功，说明登录成功

            //判断当前手机号对应的用户是否是新用户，如果是新用户就自动完成注册
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper);
            //新用户自动注册
            if (user==null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            //<避免页面闪回>
            httpSession.setAttribute("user",user.getId());
            redisTemplate.delete(phone);
            return R.success(user);
        }


        return R.error("登录失败");
    }
}
